Gemstone



FIG. 1 is a top plan view of the gemstone showing a new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a side view thereof taken at 45° fromt the right side view of FIG. 2; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for a gemstone, as shown and described. 